China’s top diplomat met with Iran’s foreign minister on Wednesday and called for greater efforts to open the Strait of Hormuz and for an end to the war, after the Trump administration pressed Beijing to help end Tehran’s chokehold over the waterway. Meeting in Beijing with his Iranian counterpart, Abbas Araghchi, Foreign Minister Wang Yi of China said that stopping the war was a matter of urgency, according to an official summary of their meeting issued by Xinhua, China’s main state news agency. While Mr. Wang was careful not to…